<?php
/* Copyright (C) 2026 Alles Watt lauft
 *
 * AJAX endpoint for equipment connections (generic for all system types)
 */

if (!defined('NOTOKENRENEWAL')) define('NOTOKENRENEWAL', '1');
if (!defined('NOREQUIREMENU')) define('NOREQUIREMENU', '1');
if (!defined('NOREQUIREHTML')) define('NOREQUIREHTML', '1');
if (!defined('NOREQUIREAJAX')) define('NOREQUIREAJAX', '1');

$res = 0;
if (!$res && file_exists("../../main.inc.php")) $res = @include "../../main.inc.php";
if (!$res && file_exists("../../../main.inc.php")) $res = @include "../../../main.inc.php";
if (!$res) die("Include of main fails");

require_once DOL_DOCUMENT_ROOT.'/custom/kundenkarte/class/equipmentconnection.class.php';
require_once DOL_DOCUMENT_ROOT.'/custom/kundenkarte/class/equipment.class.php';

header('Content-Type: application/json; charset=UTF-8');

$action = GETPOST('action', 'aZ09');
$connectionId = GETPOSTINT('connection_id');
$carrierId = GETPOSTINT('carrier_id');
$equipmentId = GETPOSTINT('equipment_id');

$connection = new EquipmentConnection($db);

$response = array('success' => false, 'error' => '');

// Security check
if (!$user->hasRight('kundenkarte', 'read')) {
	$response['error'] = 'Permission denied';
	echo json_encode($response);
	exit;
}

switch ($action) {
	case 'get':
		// Get single connection data
		if ($connectionId > 0 && $connection->fetch($connectionId) > 0) {
			$response['success'] = true;
			$response['connection'] = array(
				'id' => $connection->id,
				'fk_source' => $connection->fk_source,
				'source_terminal' => $connection->source_terminal,
				'fk_target' => $connection->fk_target,
				'target_terminal' => $connection->target_terminal,
				'connection_type' => $connection->connection_type,
				'color' => $connection->color,
				'output_label' => $connection->output_label,
				'medium_type' => $connection->medium_type,
				'medium_spec' => $connection->medium_spec,
				'medium_length' => $connection->medium_length,
				'is_rail' => $connection->is_rail,
				'rail_start_te' => $connection->rail_start_te,
				'rail_end_te' => $connection->rail_end_te,
				'rail_phases' => $connection->rail_phases,
				'excluded_te' => $connection->excluded_te,
				'fk_carrier' => $connection->fk_carrier,
				'position_y' => $connection->position_y,
				'source_label' => $connection->source_label,
				'target_label' => $connection->target_label
			);
		} else {
			$response['error'] = 'Connection not found';
		}
		break;

	case 'list':
		// List all connections for a carrier
		if ($carrierId > 0) {
			$connections = $connection->fetchByCarrier($carrierId);
			$result = array();
			foreach ($connections as $c) {
				$result[] = array(
					'id' => $c->id,
					'fk_source' => $c->fk_source,
					'source_terminal' => $c->source_terminal,
					'source_label' => $c->source_label,
					'source_pos' => $c->source_pos,
					'source_width' => $c->source_width,
					'fk_target' => $c->fk_target,
					'target_terminal' => $c->target_terminal,
					'target_label' => $c->target_label,
					'target_pos' => $c->target_pos,
					'connection_type' => $c->connection_type,
					'color' => $c->getColor(),
					'output_label' => $c->output_label,
					'medium_type' => $c->medium_type,
					'medium_spec' => $c->medium_spec,
					'medium_length' => $c->medium_length,
					'is_rail' => $c->is_rail,
					'rail_start_te' => $c->rail_start_te,
					'rail_end_te' => $c->rail_end_te,
					'rail_phases' => $c->rail_phases,
					'excluded_te' => $c->excluded_te,
					'position_y' => $c->position_y,
					'display_label' => $c->getDisplayLabel()
				);
			}
			$response['success'] = true;
			$response['connections'] = $result;
		} else {
			$response['error'] = 'Missing carrier_id';
		}
		break;

	case 'list_outputs':
		// List outputs for an equipment
		if ($equipmentId > 0) {
			$outputs = $connection->fetchOutputs($equipmentId);
			$result = array();
			foreach ($outputs as $c) {
				$result[] = array(
					'id' => $c->id,
					'connection_type' => $c->connection_type,
					'color' => $c->getColor(),
					'output_label' => $c->output_label,
					'medium_type' => $c->medium_type,
					'medium_spec' => $c->medium_spec,
					'medium_length' => $c->medium_length,
					'display_label' => $c->getDisplayLabel()
				);
			}
			$response['success'] = true;
			$response['outputs'] = $result;
		} else {
			$response['error'] = 'Missing equipment_id';
		}
		break;

	case 'create':
		if (!$user->hasRight('kundenkarte', 'write')) {
			$response['error'] = 'Permission denied';
			break;
		}

		$connection->fk_source = GETPOSTINT('fk_source');
		$connection->source_terminal = GETPOST('source_terminal', 'alphanohtml') ?: 'output';
		$connection->source_terminal_id = GETPOST('source_terminal_id', 'alphanohtml');
		$connection->fk_target = GETPOSTINT('fk_target');
		$connection->target_terminal = GETPOST('target_terminal', 'alphanohtml') ?: 'input';
		$connection->target_terminal_id = GETPOST('target_terminal_id', 'alphanohtml');
		$connection->connection_type = GETPOST('connection_type', 'alphanohtml');
		$connection->color = GETPOST('color', 'alphanohtml');
		$connection->output_label = GETPOST('output_label', 'alphanohtml');
		$connection->medium_type = GETPOST('medium_type', 'alphanohtml');
		$connection->medium_spec = GETPOST('medium_spec', 'alphanohtml');
		$connection->medium_length = GETPOST('medium_length', 'alphanohtml');
		$connection->is_rail = GETPOSTINT('is_rail');
		$connection->rail_start_te = GETPOSTINT('rail_start_te');
		$connection->rail_end_te = GETPOSTINT('rail_end_te');
		$connection->fk_carrier = $carrierId;
		$connection->position_y = GETPOSTINT('position_y');

		$result = $connection->create($user);
		if ($result > 0) {
			$response['success'] = true;
			$response['connection_id'] = $result;
		} else {
			$response['error'] = $connection->error ?: 'Create failed';
		}
		break;

	case 'update':
		if (!$user->hasRight('kundenkarte', 'write')) {
			$response['error'] = 'Permission denied';
			break;
		}
		if ($connection->fetch($connectionId) > 0) {
			$connection->fk_source = GETPOSTINT('fk_source');
			$connection->source_terminal = GETPOST('source_terminal', 'alphanohtml') ?: 'output';
			$connection->fk_target = GETPOSTINT('fk_target');
			$connection->target_terminal = GETPOST('target_terminal', 'alphanohtml') ?: 'input';
			$connection->connection_type = GETPOST('connection_type', 'alphanohtml');
			$connection->color = GETPOST('color', 'alphanohtml');
			$connection->output_label = GETPOST('output_label', 'alphanohtml');
			$connection->medium_type = GETPOST('medium_type', 'alphanohtml');
			$connection->medium_spec = GETPOST('medium_spec', 'alphanohtml');
			$connection->medium_length = GETPOST('medium_length', 'alphanohtml');
			$connection->is_rail = GETPOSTINT('is_rail');
			$connection->rail_start_te = GETPOSTINT('rail_start_te');
			$connection->rail_end_te = GETPOSTINT('rail_end_te');
			$connection->rail_phases = GETPOST('rail_phases', 'alphanohtml');
			$connection->excluded_te = GETPOST('excluded_te', 'alphanohtml');
			$connection->position_y = GETPOSTINT('position_y');

			$result = $connection->update($user);
			if ($result > 0) {
				$response['success'] = true;
			} else {
				$response['error'] = $connection->error ?: 'Update failed';
			}
		} else {
			$response['error'] = 'Connection not found';
		}
		break;

	case 'delete':
		if (!$user->hasRight('kundenkarte', 'delete')) {
			$response['error'] = 'Permission denied';
			break;
		}
		if ($connection->fetch($connectionId) > 0) {
			$result = $connection->delete($user);
			if ($result > 0) {
				$response['success'] = true;
			} else {
				$response['error'] = $connection->error ?: 'Delete failed';
			}
		} else {
			$response['error'] = 'Connection not found';
		}
		break;

	case 'create_rail':
		// Create a rail/bar connection spanning multiple equipment
		if (!$user->hasRight('kundenkarte', 'write')) {
			$response['error'] = 'Permission denied';
			break;
		}

		$connection->is_rail = 1;
		$connection->connection_type = GETPOST('connection_type', 'alphanohtml');
		$connection->color = GETPOST('color', 'alphanohtml');
		$connection->rail_start_te = GETPOSTINT('rail_start_te');
		$connection->rail_end_te = GETPOSTINT('rail_end_te');
		$connection->rail_phases = GETPOST('rail_phases', 'alphanohtml');
		$connection->excluded_te = GETPOST('excluded_te', 'alphanohtml');
		$connection->fk_carrier = $carrierId;
		$connection->position_y = GETPOSTINT('position_y');

		$result = $connection->create($user);
		if ($result > 0) {
			$response['success'] = true;
			$response['connection_id'] = $result;
		} else {
			$response['error'] = $connection->error ?: 'Create failed';
		}
		break;

	case 'create_output':
		// Create an output connection
		if (!$user->hasRight('kundenkarte', 'write')) {
			$response['error'] = 'Permission denied';
			break;
		}

		$connection->fk_source = $equipmentId;
		$connection->source_terminal = 'output';
		$connection->fk_target = null;
		$connection->connection_type = GETPOST('connection_type', 'alphanohtml');
		$connection->color = GETPOST('color', 'alphanohtml');
		$connection->output_label = GETPOST('output_label', 'alphanohtml');
		$connection->medium_type = GETPOST('medium_type', 'alphanohtml');
		$connection->medium_spec = GETPOST('medium_spec', 'alphanohtml');
		$connection->medium_length = GETPOST('medium_length', 'alphanohtml');
		$connection->fk_carrier = $carrierId;
		$connection->position_y = 0;

		$result = $connection->create($user);
		if ($result > 0) {
			$response['success'] = true;
			$response['connection_id'] = $result;
		} else {
			$response['error'] = $connection->error ?: 'Create failed';
		}
		break;

	case 'list_all':
		// List all connections for an anlage (across all carriers)
		$anlageId = GETPOSTINT('anlage_id');
		if ($anlageId > 0) {
			// Get all carriers for this anlage
			require_once DOL_DOCUMENT_ROOT.'/custom/kundenkarte/class/equipmentcarrier.class.php';
			$carrierObj = new EquipmentCarrier($db);
			$carriers = $carrierObj->fetchByAnlage($anlageId);

			$allConnections = array();
			foreach ($carriers as $carrier) {
				$connections = $connection->fetchByCarrier($carrier->id);
				foreach ($connections as $c) {
					$allConnections[] = array(
						'id' => $c->id,
						'fk_source' => $c->fk_source,
						'source_terminal' => $c->source_terminal,
						'source_terminal_id' => $c->source_terminal_id,
						'source_label' => $c->source_label,
						'fk_target' => $c->fk_target,
						'target_terminal' => $c->target_terminal,
						'target_terminal_id' => $c->target_terminal_id,
						'target_label' => $c->target_label,
						'connection_type' => $c->connection_type,
						'color' => $c->getColor(),
						'output_label' => $c->output_label,
						'medium_type' => $c->medium_type,
						'medium_spec' => $c->medium_spec,
						'medium_length' => $c->medium_length,
						'is_rail' => $c->is_rail,
						'fk_carrier' => $c->fk_carrier
					);
				}
			}

			$response['success'] = true;
			$response['connections'] = $allConnections;
		} else {
			$response['error'] = 'Missing anlage_id';
		}
		break;

	case 'clear_all':
		// Delete all connections for an anlage
		if (!$user->hasRight('kundenkarte', 'delete')) {
			$response['error'] = 'Permission denied';
			break;
		}

		$anlageId = GETPOSTINT('anlage_id');
		if ($anlageId > 0) {
			// Get all carriers for this anlage
			require_once DOL_DOCUMENT_ROOT.'/custom/kundenkarte/class/equipmentcarrier.class.php';
			$carrierObj = new EquipmentCarrier($db);
			$carriers = $carrierObj->fetchByAnlage($anlageId);

			$deletedCount = 0;
			foreach ($carriers as $carrier) {
				$sql = "DELETE FROM ".MAIN_DB_PREFIX."kundenkarte_equipment_connection WHERE fk_carrier = ".((int)$carrier->id);
				$resql = $db->query($sql);
				if ($resql) {
					$deletedCount += $db->affected_rows($resql);
				}
			}

			$response['success'] = true;
			$response['deleted_count'] = $deletedCount;
		} else {
			$response['error'] = 'Missing anlage_id';
		}
		break;

	default:
		$response['error'] = 'Unknown action';
}

echo json_encode($response);
$db->close();